baber/WOPTO huggingface dataset:
Patent GB-117352-A (GB)
Title: Improvements in or relating to Stuffing Boxes.
IPC: F16J15/24
Filed: 1917-09-27
Abstract: 117,352. Hopkinson, L. H., and Hopkinson, & Co., J. Sept. 27, 1917. Packing, metallic; packing, non-metallic.-Relates to improvements in packing of the kind set forth in Specification 8385/91 comprising a conical bush A, preferaby of soft metal, forced into a conical seating in the box by means of fibrous or like packing C compressed by a gland as shown in Fig. 1, an additional conical bush D, preferably also of soft metal, fitting a conical seating in the gland is placed over the fibrous packing C. In a modification, shown in Fig. 2, a further conical bush G is placed over the fibrous packing C and is enclosed in fibrous packing. A number of such conical bushes may be used all embedded in fibrous packing and, instead of being made of soft metal, the conical bushes may be made in segments.
Patent GB-588083-A (GB)
Title: Fuel system
IPC: F02C7/22
Filed: 1941-10-30
Abstract: 588,083. Gas turbines. POWER JETS, Ltd., WALKER, D. N., FEILDEN, G. B. R., and MEESON, E. L. Oct. 30, 1941, No. 13976. [Class 110 (iii)] [Also in Groups XXVII and XXIX] In a gas turbine assembly for the jet propulsion of aircraft, the pressure of the fuel delivered to a throttle valve 4, Fig. 1, by a gear pump 1 is regulated in accordance with the ambient pressure by a relief valve 10. The throttle valve is byepassed by a second valve which closes when the throttle is opened. An over-speed-governor-controlled valve 5, which does not entirely shut, and a stop valve 6 are in series with the throttle valve. Fuel passes to the burners 9 through a dump valve as described in Specification 622,904. A low-pressure fuel pump 12 is driven by a starting motor 12c and its delivery is closed by a non-return valve 12D when the delivery pressure of the pump 1 rises sufficiently. In place of a second fuel pump 12, an accumulator may be provided which is charged by the fuel pump 1 before the stop valve 6 is opened. In the relief valve 10 the fuel enters at 3B, Fig. 2, raises and passes a valve 103 and leaves at 106. The valve 103 is loaded by a spring pack 104 abutting against a piston 105 behind which pressure oil is admitted through a control valve 109. This valve is operated by an exhausted box 112 in a chamber 113 to which the ambient pressure is admitted. A follow-up device is provided by a rod 117 and a lever 116 which moves the box 112 and valve 109 bodily. The stop valve 6 is a lift valve 307, Fig. 3, integral with a guiding piston and operated by an eccentric pin 305 on the spindle 304. The governor-controlled valve 5 is a piston valve operated by a speed governor. The piston rides in a sleeve having a series of ports and in the extreme high-speed position of the piston the last of the ports remains open. The gland of the valve stem is, preferably, a series of flexible diaphragms. The throttle valve 4 comprises a cone valve 503, Fig. 5, on a screwed stem 504 and a seating on a sleeve 502 which is adjustable axially by means of a screwed stem fixing. The valve 503 is byepassed by a channel 505A and ports 510c in a sleeve loaded by a spring 511. Before starting, the spring 511 keeps the ports 510c open and the flanged end 510B of the sleeve seated against a sealing ring. When the pump 12 is in running, the ported sleeve operates as a pressureregulating valve and when the pump 1 is delivering fuel at high pressure and the throttle is open, the ported sleeve is moved to close the ports 510c and to bring its flange up to a sealing ring 514. The spring-loading of the sleeve is raised by means of an abutment ring 513 screwed into the body and turnable by means of a squared spindle 512A.
Patent GB-324302-A (GB)
Title: Improvements in cones for gramophones and loud speakers
IPC: H04R7/12
Filed: 1929-05-06
Abstract: 324,302. Cassin, P. May 6, 1929. Diaphragms. - A folding conical diaphragm for gramophones and loudspeakers consists of a plurality of sectors a, b, c of stiff bendable material hinged together by rule joints which prevent them folding in one direction beyond a plane in common. Fig. 1 shows the inside or front face of the sectors in the flat condition, the rule joint being formed as shown in Fig. 7 by extending the border portion d of one of each interhinged pair of sectors stiffly beyond the actual line e of hinging. The portions d are cut away as shown to avoid undue thickness at the apex of the cone. The actual hinging is effected by stitching or wire riveting as at g an extended but narrower border portion f of one sector to its adjacent sector as shown, a crease to facilitate folding being provided at e. The free edges of the sectors a, c are secured together as shown in Figs. 1 and 8 by inserting the edge of sector c between an extension h on the edge of sector a and a strip i stitched or riveted thereto at j, the outer end of sector c being formed with a notch k to engage behind an eyelet l riveted through the outer end of extension h and strip i.
Patent GB-995964-A (GB)
Title: New pyridine derivatives
IPC: C07D211/22
Filed: 1964-04-06
Abstract: The invention comprises compounds of formula <FORM:0995964/C2/1> where R is a hydrogen or halogen atom, or an alkyl or alkoxy group, and R1 is a hydrogen atom, or alkyl group, and acid-addition salts thereof, which are prepared by cyclizing aryl-a -piperidyl-carbinols of formula <FORM:0995964/C2/2> with cyanogen halides, or by converting the carbinols, preferably in the form of their acid-addition salts, by treatment with cyanates or thiocyanates into the corresponding ureas or thioureas which can then be cyclized by heating with a hydrohalic acid, alcoholic mercury oxide or thionyl chloride.  Further, when working at temperatures the cyanides obtained by treating the carbinols with a cyanogen halide can be isolated, and then cyclized.  The compounds can be obtained as cis- or trans-isomers and optical antipodes thereof.  Phenyl - 2 - (6 - methylpiperidyl) carbinol is prepared by reacting 6-methylpyridine-2-aldehyde with phenyl magnesium bromide to give phenyl - 2 - (6 - methylpyridyl) carbinol which is reduced, (-) -and ( +( - erythro - phenyl - 2 - piperidyl-carbinol and erythro-m-methylphenyl-2-piperidyl carbinol, and the hydrochloride salts thereof, are prepared by hydrogenating the required phenyl-pyridyl-carbinols, and, when required, converting the products to the hydrochloride salts. Erythro-(p-methoxyphenyl)-2-piperidyl -carbinol is produced by the reduction of p-methoxyphenyl-2-pyridyl carbinol. Erythro - (m - methoxyphenyl) - 2 - piperidyl carbinol is similarly prepared from m-methoxyphenyl-2-pyridyl carbinol which is obtained by reacting 2-pyridyl magnesium bromide with m - methoxybenzaldehyde. Erythro - (p - chlorophenyl) -2-piperidyl carbinol is produced by the reduction of p-chlorophenyl-2-pyridyl ketone.
Patent GB-162553-A (GB)
Title: Improvements in electrical apparatus for railway signalling
IPC: B61L23/12
Filed: 1920-05-21
Abstract: 162,553. Tyer &. Co., Ltd., and Downes, F. May 21, 1920. Signalling-instruments; signalling-instruments, interlocking.-Signalling-instruments operated by permanent currents are provided with contacts e, f in the indicator circuit, which are controlled by the operating handle. The contacts e are in series with the indicator B, B' and prevent operation thereof when the operating handle is moved to receive a train. The contacts f prevent simultaneous operation of both instruments as at a junction of two lines. A pointer c<1> on the commutator shows the signal transmitted.
Patent GB-432998-A (GB)
Title: Improved process for the treatment of tars
IPC: C10C1/00
Filed: 1934-05-10
Abstract: 432,998. Pitch and tar. THERMAL INDUSTRIAL & CHEMICAL (T.I.C.) RESEARCH CO., Ltd., and CONDRUP, C. O., 136, Victoria Street, Westminster. May 10, 1934, Nos. 14137 and 20658. [Class 55 (ii)] Gums, defined as sticky or resinous materials are obtained by distilling tar down to a hard pitch residue, removing an oil fraction boiling above 325‹ C., treating the fraction with a reagent, such as an acid or an alkali, separating the gum-containing layer from the oily layer obtained, and recovering the gums therefrom. A proportion of the gums may be returned to the pitch residue, together with selected condensates from earlier stages of the distillation, to produce a road tar of improved quality. The final stage of the distillation may be effected by steaming. The oil fraction is preferably treated with strong sulphuric acid, in the proportion of 2-3 per cent of the weight of the fraction and at a temperature of 120-180‹ F., and the separated gumcontaining layer neutralized with ammonia or sodium hydroxide. The oily layer of the fraction is treated with alkali, such as 10 per cent caustic soda ; the alkaline solution containing any remaining gums is then neutralized or added to the acid fraction already separated to give a maximum yield of gums. In a modification of the process, the oil fraction is treated firstly with caustic soda and the oily residue obtained treated with sulphuric acid, the remaining treatment being as before.
Patent GB-1091037-A (GB)
Title: Chlorinated polyvinyl chloride compositions
IPC: C08L27/24
Filed: 1966-03-30
Abstract: A composition comprises 70 to 95 parts by weight of a chlorinated vinyl chloride polymer and 30 to 5 parts by weight of a polymer produced by emulsion polymerization of a mixture of 0 to 70% by weight of styrene, 30 to 100% by weight of methyl methacrylate, and 0 to 10% by weight of butadiene in an aqueous latex obtained by emulsion polymerization of a mixture of 10-60% by weight of styrene, 40-70% by weight of butadiene, and 0-50% by weight of methyl methacrylate.
Patent GB-592997-A (GB)
Title: Improvements in and relating to thermionic valve oscillators
IPC: H03B5/22
Filed: 1945-06-05
Abstract: 592,997. Thermionic valve oscillators. MUIRHEAD & CO., Ltd., and DAVIDSON, J. A. B. June 5, 1945, No. 14180. [Class 40 (v)] A thermionic valve sinusoidal oscillator comprises two reciprocally-coupled valves, the output of each being connected to the input of the other by means of non-resonant resistancecapacity filters giving zero phase displacement at the desired oscillation frequency and phase displacement which varies in opposite senses for frequencies on either-side of this value. Fig. 5 shows valves 1 and 2 so connected by means of filter networks C1, R1, C2, R2 and C3, R3, C4, R4. The zero phase displacement frequency of the first filter is given by f= 2# 1/ #R1 R2<2> C1 C2, and this is arranged to correspond with that of the second filter. One or more of the capacity elements, or the resistor elements may be made variable to control the frequency, and two or more of these elements may be ganged together. Regeneration may be controlled by varying the input or output voltage of each filter as is shown, for example, by the tapping point on resistor 13. The output may be taken between either anode and earth, or a balanced output may be taken from points 16 and 17, balance adjustment being effected by the tapping on resistor 12. An alternative type of filter is shown in Fig. 2. Specification 497,148 is referred to.
Patent GB-691066-A (GB)
Title: Improvements in or relating to a safety device controlling a machine clutch
IPC: F16D23/12
Filed: 1950-06-08
Abstract: 691,066. Photo-electric machine guards. RADIOVISOR PARENT, Ltd., IVE, G. A. G., DUPLE MOTOR BODIES, Ltd., and HILL, A. C. June 8, 1951 [June 8, 1950], No. 14288/50. Class 40 (iii). In a machine having a photo-electric guard the connection between the clutch and its operating pedal comprises two relatively slidable members engaged together by a solenoid under the control of the photo-electric guard. As shown, the pedal is connected by a rod 2 to a member 4 which slides in an undercut guideway 5 in a member 3 and which is connected to the clutch by a rod 1. Member 3 slides in a fixed guide 6. In the member 4 is cut a recess 10 in which the end of a bell-crank lever 8 may engage. This lever is rocked by the solenoid 13 which is under the control of the photo-cell and is carried on the member 3. The shape of the end of the lever and the slot 10 is such that pressure on the clutch pedal forces the end of the lever 8 out of member 4 breaking the clutch connection unless the lever is held in position by energization of the solenoid.
Patent GB-709388-A (GB)
Title: Post-operative epigastric wound support
IPC: A61F5/32
Filed: 1952-06-06
Abstract: 709,388. Surgical supports. CAMPBELL, P. June 6, 1952, No. 14299/52. Class 81(2) A constricting belt intended to provide support after an epigastric operation comprises a felt strip 9 around which is threaded a band of webbing 8 adjustably connected at one end to a padded metal plate 1 while the other end is attached to a lever 5 pivoted on a bridge member 4. The patient moves the lever over about its pivot to tighten the belt to prevent harm to the wound during, coughing.
Patent GB-1249077-A (GB)
Title: Light-sensitive silver halide photographic material
IPC: G03C7/00
Filed: 1970-03-24
Abstract: 1,249,077. Photographic anti-foggants. KONISHIROKU PHOTO INDUSTRY CO. Ltd. March 24, 1970 [March 25, 1969], No. 14354/70. Heading G2C. Photographic light-sensitive silver halide materials contain in any layer an anti-foggant of the formula:- wherein X is hydrogen, halogen, nitro or substituted or unsubstituted alkyl or aryl; Y is hydrogen or substituted or unsubstituted alkyl or alkoxy; and Z is hydrogen or substituted or unsubstituted alkyl or aryl.
Patent GB-1381793-A (GB)
Title: Ball holder
IPC: A63B47/00
Filed: 1972-03-28
Abstract: 1381793 Brackets W C KINARD 28 March 1972 [29 March 1971] 14368/72 Heading A4B [Also in Division E2] A ball holder comprises a piece of wire bent as shown in Fig.1. The ball is held between loops 19, 22 and the device is mounted on a fabric strip support by frictional engagement of U-shaped portions 17-18-17 and 24-26-24. An alternative detailed shape is described Figs.5-7 (not shown). The device is preferably of #" aluminium wire, but other wire may be used.
Patent GB-495203-A (GB)
Title: Improvements in and apparatus for the recovery of hydrocarbons from gases containing the same
IPC: C10G5/04
Filed: 1937-05-24
Abstract: <PICT:0495203/III/1> Hydrocarbons are recovered from their admixtures with permanent gases by washing in a multi-stage tower, in the lowest stage of which the second lightest of the hydrocarbons to be recovered is used as washing liquid, while successively heavier hydrocarbons are used in the upper stages, the heaviest of the hydrocarbons to be recovered being used in the last stage.  Each hydrocarbon thus serves as solvent for the extraction of the next lighter one. All the washing liquids may pass to the base of the tower and be there used to wash the incoming gases.  In the embodiment shown a mixture of methane, ethane, propane, and butane is compressed in b to 21 atmospheres, and cooled and partly condensed in c.  The gas passes through the vaporizer d in which the condensate is mixed with liquid withdrawn from the washing vessel g and partly reevaporated.  The gas is then washed with the mixed hydrocarbons in vessel g and passes to the lowest stage h of the washing tower proper where it is washed with propane.  In the upper stage i the remaining gas is washed with butane.  The residual gas consisting largely of methane is freed from butane by oil washing in x, the butane being returned to the cycle by pipe z.  The mixed washing agents collecting in g are partly recycled through cooler r and partly withdrawn by way of evaporator d to rectifier l from which the separate hydrocarbons are obtained.
Patent GB-491614-A (GB)
Title: Improvements in or relating to electric communication cables and to the manufacture thereof
IPC: H01B13/26
Filed: 1937-05-25
Abstract: 491,614. Cables. STANDARD TELEPHONES & CABLES, Ltd. (Western Electric Co., Inc.) May 25, 1937, No. 14506. [Class 36] [Also in Group XXII] The sheath of a multi-core cable has annular corrugations and comprises a thin continuous metal tape, the edges of which are secured together longitudinally of the cable, the basal parts of the corrugations being in contact with the cable insulation. Conductors 10, Fig. 5, insulated, for instance, with paper or textile material and preferably twisted in pairs, are loosely stranded to form a bundle 12 which is covered with a paper wrapping 13 : over the latter is applied the corrugated sheath 24, a protective coating 35 such as tough rubber, guttapercha or asphalt flooded burlap, and a layer 36 of paper. Metallic tape 18, e.g. of brass, copper or zinc, is fed from a reel 17 through corrugating rollers 22, 23: the edges of the tape may be coated with solder before corrugating. Paper covered conductor group 15, fed from a reel 14 is forced against the central part of the corrugated tape 24 by a shoe 26 coacting with a roll 25 having a half-round peripheral groove to curve the central portion of the tape. Forming rolls 27, 29 coacting with guide rolls 28, 30 curve the sides of the tape around the conductor group. The edges of the tape are joined by lapping, or soldering, by passing the tape and core through a heated tube 32: alternatively, the tube 32 may be replaced by a welding or brazing apparatus. The assembled conductor is received on a take-up spool 33. In another form, Figs. 6, 8, 10, 11, a tape 18 having preformed corrugations is drawn from a supply 17 over a guide 37 and between guides 38, 39 to edge curling rolls 41 ... 44, the upper rolls 41, 43 having convex and the lower rollers 42, 44 concave peripheries ; a bending roll is positioned in front of the rolls 41 . . . 44 : none of these rolls are corrugated. The core 15 enters a tubular guide 46 beyond the rolls 41 ... 44, the tape passing under the guide. Idlers 48 ... 51, supporting the guide 46, coact therewith to fold the tape, each roll being concave and of slightly greater curvature than the preceding one. The roll 50 is associated with idlers 52, 53 to prevent twist or lateral shift of the tape. The tape next passes between coacting forming rolls 54, 55, the lower holding the middle part of the tape firmly against the guide 46 whilst the upper forms down the edges of the tape upon the upper convex side of the guide ; the roll 54 fits into the roll 55 as shown in Fig. 11. The tape and core then leave the guide 46 and traverse a stationary frusto-conical element 56 and coacting compacting idler rolls 57, 58. The edges of the tape are then secured as desired. If desired, one pair of the rolls 41, 42 or 43, 44 may be cylindrical so that only one edge of the corrugated tape is curled thereby.
Patent GB-226110-A (GB)
Title: Improvements relating to chain lath blinds
IPC: E06B9/15
Filed: 1924-06-16
Abstract: 226,110. Tidmarsh, J. H. B., and Tidmarsh & Sons. June 16,1924. Lath blinds.-In a chain lath blind having the laths a connected by clips b of the form shown, the clips are joined by closed links c stamped from metal sheet and preferably in the form of an open rectangle the inner width of which corresponds to that of the clip. Reference has been directed by the Comptroller to Specifications 6275/99 and 25603/01.
Patent GB-451881-A (GB)
Title: Improvements in or relating to solvent refining of mineral oil
IPC: C10G21/16
Filed: 1935-05-17
Abstract: <PICT:0451881/III/1> In a process for separating mineral oils into their paraffinic and naphthenic components by countercurrent extraction with a selective solvent, the oil is admitted at the top of a vertical treating zone containing a contact surface submerged in the oil and the selective solvent is admitted at a point remote from that of the oil and the solvent is moved in relatively dispersed phase through the oil.  A temperature differential of about 100 DEG F., is maintained over the zone by maintaining the temperature of the solvent entry above that of the oil.  This is effected by heating the oil and solvent to the required temperatures, or by a heating jacket surrounding the zone.  Oil passes through a heat-exchanger 1 and enters the bottom of a tower 2 at 100 to 150 DEG  F., at a sufficient rate to maintain the tower full of oil.  A selective solvent such as furfural passes through a heat-exchanger 4 and enters the top of the tower at 200 to 300 DEG  F.  The tower is packed with Raschig rings, pebbles, or tiles over which the furfural is sprayed through the oil and forms a downwardly moving film over the packing material through which the oil rises as a substantially continuous phase.  Paraffinic oil is drawn off through the pipe 8 and naphthenic extract and solvent sinks and is drawn off through a pipe 6.  Wax-containing oils and cylinder stocks may be previously diluted with light petroleum fractions such as naphtha, liquefied propane, or butane, and aromatic solvents, e.g. benzol, or low boiling alcohols or ethers are added whereby viscosity is reduced and extraction is more efficient.
Patent GB-126881-A (GB)
Title: Improvements in and relating to the Cleaning or Purification of Powdered or Comminuted Alloys.
Inventor: POETSCHKE PAUL
IPC: C23G1/00
Filed: 1918-09-07
Abstract: 126,881. Poetschke, P. Sept. 7, 1918. Filters having sheet filtering-materials. - In cleaning powdered alloys, particularly for dental purposes, the alloy is spread out in trays 2 comprising cloth or the like stretched over wooden frames, and a number of the trays are immersed in .a tank containing ethyl, methyl, or denatured alcohol, acidified preferably with hydrochloric acid. After this treatment the trays are washed repeatedly in clean water and are placed in an inclined position on a rack 5 to drain. They are then dipped in alcohol and again drained, after which they are dried.
Patent GB-236359-A (GB)
Title: Improvements relating to boiler and like gauge glasses
IPC: G01F23/02
Filed: 1924-06-18
Abstract: 236,359. Hopkinson, R. A., Brown, R. L., and Hopkinson & Co., Ltd., J. June 18, 1924. Gauge glasses. - To facilitate the reading of a gauge glass a, a screen c of prismatic glass is placed between the gauge glass and an electric lamp b or other source of light arranged at the back of the gauge. The rear shield c and the lamp container f are constructed as described in Specification 235,009. Specification 28860/02 also is referred to.
Patent GB-504863-A (GB)
Title: Improvements in seed sowers and like machines
IPC: A01C7/20
Filed: 1938-05-18
Abstract: 504,863. Distributers for manures, seeds, &c. MAYER, S. May 18, 1938, No. 14773. [Class 6 (i)] A machine for distributing manure or sowing seeds is provided with a number of coutters 18 each of which is connected to the hopper 8 by a rubber tube 11. The upper end of the tube may be provided with a fitting 10 which embraces a short tube or neck depending from the hopper. The fitting 10 may be secured in the tube 11 by a clip comprising a metal band 14 the overlapping ends of which can be drawn together by a screw 17 carried by one end of the band and engaging recesses 16 in the other end. In the machine illustrated the coulter 18 is carried by a frame 19 hinged to the main frame of the machine so that it can be lifted and lowered by a flexible member 22 and winch 23. A cutter or furrow-making wheel 24 driven from the main axle 6 may be arranged in front of each coulter 18, the furrow depth being regulated by an adjustable wheel 26. Agitators may be driven from the axle 6 and may cooperate with shutters reciprocating across the hopper outtet, or a member having pockets may deliver the seed &c. to the tubes 11. A separate hopper may be provided for each tube and coulter, or a single hopper having a number of openings in the bottom may be used.